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This patch makes 'next-completion' and 'previous-completion' work
in the vertical completions format analogously to how they work in
the default horizontal format (bug#78959). It also fixes wrapping
in the vertical format and confines navigation (including
wrapping) in column-wise movement in the vertical format to the
current line, analogously to how navigation (including wrapping)
in line-wise movement in the horizontal format is confined to the
current column.
* doc/emacs/mini.texi (Completion): Fix several typos and improve
wording is several places.
(Completion Commands): Document navigation of the *Completions*
buffer in the vertical format. Document the difference between
format-sensitive movement and strictly column-wise or line-wise
movement. Document 'minibuffer-complete-and-exit' and update the
documentation of 'minibuffer-completion-auto-choose' and
'minibuffer-choose-completion'. Document the use of a numeric
prefix argument with the navigation commands.
(Completion Options): Rearrange and improve documentation of
'completions-sort', 'completions-format' and
'completion-auto-wrap', updating the latter to document the new
behavior.
* lisp/minibuffer.el (minibuffer-visible-completions-map): Rebind
"<left>" to 'minibuffer-previous-column-completion' and "<right>"
to 'minibuffer-next-column-completion'.
(minibuffer-next-completion): Add check for whether completions
format is vertical to decide whether to call
'next-line-completion' and replace calling 'next-completion' by
'next-column-completion'.
(minibuffer-next-column-completion)
(minibuffer-previous-column-completion): New commands.
* lisp/simple.el (completion-list-mode-map): Rebind "<left>" to
'previous-column-completion' and "<right>" to 'next-column-completion'.
(last-completion): Add handling for vertical completions format.
(completion--move-to-candidate-end): Always move point to the
position immediately after the last character of the completion
candidate. This unifies the behavior, simplifies the
implementation and facilitates implementing the improved
navigation of the *Completions* buffer.
(previous-column-completion, next-column-completion): New
commands, replacing the previous definitions of
'previous-completion' and 'next-completion' to reflect their
column-wise operation. Confine navigation (including wrapping) in
vertical format to the current line.
(previous-line-completion, next-line-completion): Implement
line-wise navigation (including wrapping) through all completions
in vertical format, not just those in the current column as in
horiztonal format. Update doc strings.
(next-completion, previous-completion): Redefine to call
'{next,previous}-line-completion' when completions format is
vertical and '{next,previous}-column-completion' otherwise.
* test/lisp/minibuffer-tests.el
(completions-format-navigation--tests): New function providing a
template to define tests of the navigation and wrapping behavior
with specified numbers of completion candidates.
(completions-format-navigation-test-{2,3,4,5,10,15,16}): New tests.
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This directory contains the architecture-independent files used by or with Emacs. This includes some text files of documentation for GNU Emacs or of interest to Emacs users, and the file of dumped docstrings for Emacs functions and variables. COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES File: emacs.icon Author: Sun Microsystems, Inc Copyright (C) 1999, 2001-2025 Free Software Foundation, Inc. License: GNU General Public License version 3 or later (see COPYING)